# math

### What math is used the most in cosmology/astrophysics?

Considering one is taking all the required math courses for a typical physics degree, what math electives are most crucial to the field of...
Thread by: astroman707, Aug 15, 2018 at 9:11 AM, 1 replies, in forum: Academic Guidance

### Finding height and area of trapezoid from its legs and bases

Hello. I am wondering how I can find the area of a trapezoid from its two legs and bases. My problem: ABCD is a trapezium with AB parallel to CD...
Thread by: ISamson, Aug 4, 2018, 12 replies, in forum: Precalculus Mathematics Homework

### Other Selecting a career with my BS in Applied Mathematics, BS in Physics and minor in Computer Science

This may be better suited in the academic forum, or possibly not even the normal type of question asked, but I was just judging based on other...
Thread by: transmini, Aug 3, 2018, 2 replies, in forum: Career Guidance

### Fortran Getting my method of bisection to output the correct value

I am trying to write a program that calculates the root of chi-square. I am not getting the correct answer and I honestly am at my wits end trying...
Thread by: sarah_frtrn, Aug 3, 2018, 11 replies, in forum: Programming and Computer Science

1. Determine the equation that represents the relationship between the power and the current when the electric potential difference is 24v and the...
Thread by: Zacko282, Aug 3, 2018, 18 replies, in forum: Precalculus Mathematics Homework

### Differential Equations: Solve the following

1. The problem statement, all variables and given/known data Solve the following differential equations/initial value problems: (cosx) y' +...
Thread by: komarxian, Jul 31, 2018, 2 replies, in forum: Calculus and Beyond Homework

### Differential Equations, solve the following: y^(4) - y'' - 2y' +2y = 0

1. The problem statement, all variables and given/known data Solve the following differential equations/initial value problem: y^(4) - y'' - 2y'...
Thread by: komarxian, Jul 31, 2018, 6 replies, in forum: Calculus and Beyond Homework

### Intro Physics Level of Math Required for Young’s University Physics

I am a high school student who is planning to start Young and Freedman’s University Physics out of personal interest. However, I am not sure what...
Thread by: enc12341, Jul 25, 2018, 11 replies, in forum: Science and Math Textbooks

### Engineering Recommendations for Books [HNC in mech eng]

Hi Everyone, I'm currently working toward a HNC in Mechanical Engineering and was wondering if anyone has any recommendations for books to help...
Thread by: eAir, Jul 12, 2018, 2 replies, in forum: Science and Math Textbooks

### Calculus Best textbook to truly understand single variable calculus?

I am currently self learning high school level AP Calculus BC over the summer. From a mathematical perspective, I have heard that high school...
Thread by: Varma21, Jun 28, 2018, 15 replies, in forum: Science and Math Textbooks

### How to calculate triac angle to set desired RMS voltage

Hi, I would like to implement voltage regulator based on microcontroller + triac. I am able to calculate source RMS voltage by sampling signal...
Thread by: Urrys, Jun 27, 2018, 11 replies, in forum: Electrical Engineering

### Courses Improving my mathematical foundation for physics

Hi all, I am making a decision regarding the mathematics courses I should take before graduating so that I can leave Uni with a "decent enough"...
Thread by: WWCY, Jun 10, 2018, 7 replies, in forum: Academic Guidance

### Programs How should I prepare for Berkeley's Math 1A & Physics 8A?

I just finished my sophomore year of high school and i'm taking Math 1A and physics 8A this summer. I got A's for both my physics II (school...
Thread by: drawded, Jun 3, 2018, 1 replies, in forum: Academic Guidance

### I Surface area of a revolution, why is this wrong?

Why is this way of thinking wrong?. can't I assume that when Δx tends to zero is a sufficient approximation of what I want to get? It confuses me...
Thread by: CollinsArg, May 24, 2018, 2 replies, in forum: Calculus

### Intro Physics Physics books for a mathematician

Hello, I am a first-year mathematics PhD student. I am completely initiated in rigorous mathematics, and have a strong intuitive and working...
Thread by: Oats, May 13, 2018, 4 replies, in forum: Science and Math Textbooks

### Courses Figuring out which (undergrad) classes to take

I have spent the past few months incredibly conflicted. I just finished my freshman year of undergrad (at a 4-year American university) and I have...
Thread by: asinoof, May 12, 2018, 2 replies, in forum: Academic Guidance

### I Keeping track of different mathematical works

I just like to read and know, and still, I realise that there have been so many works in mathematics and so much to study which I don't even know...
Thread by: Akash Pratap Singh, May 5, 2018, 4 replies, in forum: General Math

### Other Books Famous Scientists Studied From

Hey, I haven't seen a thread on this topic, so I figured I should start it. Hopefully others can contribute! Srinivasa Ramanujan - SL Loney,...
Thread by: Humanlimits, May 1, 2018, 4 replies, in forum: Science and Math Textbooks

### $\lim_{n \to \infty}$ for the sequence at $a_n$

1. The problem statement, all variables and given/known data $a_1$ = 3 $a_{n+1}$ = $\frac{2}{3} a_n + \frac{1}{4}$ 2. Relevant equations...
Thread by: Helly123, Apr 29, 2018, 51 replies, in forum: Calculus and Beyond Homework